Steep coal-seam coal mining and transportation apparatus and coal mining and transportation method

A technology for mining and transporting coal and steep inclining, which is applied in mining equipment, earth-moving drilling, cutting machinery, etc. The effect of coal mining efficiency, improving total driving torque and simple structure

Inactive Publication Date: 2016-01-20
王洁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since coal mining is done manually, the inclination angle of the pseudo-inclined working face should not be set too large, otherwise, there will be a risk of people falling down; at the same time, the self-resting angle of coal is affected by coal quality, so it must not be set on the premise of satisfying the safety of personnel. Coal in most coal mines usually cannot be self-sliding but needs to be completed by self-sliding chute

Method used

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  • Steep coal-seam coal mining and transportation apparatus and coal mining and transportation method
  • Steep coal-seam coal mining and transportation apparatus and coal mining and transportation method
  • Steep coal-seam coal mining and transportation apparatus and coal mining and transportation method

Examples

Experimental program
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Effect test

Embodiment 1

[0026] See Example 1 figure 1 , figure 2 , A coal mining and transporting device for steeply inclined coal seams, including a coal mining unit 1, a coal transport unit and a control system. The coal mining unit 1 is connected in series to an annular flexible traction member 2 through the front and rear ends. The output rotary drive unit 3 is driven, and the flexible traction member 2 is reversed by the reversing unit 4 to make the coal mining unit 1 move forward or backward. The back of the coal mining unit 1 is provided with a groove for intercepting the coal and rock mass below The coal mining part 1a; the flexible traction member 2 with a set length behind the coal mining unit 1 is in the structure of a traction chain 2a, and multiple rows of coal scrapers 2b that can penetrate into the groove are distributed along the length of the traction chain, The traction chain 2a and the coal scraper 2b constitute the coal transport unit.

[0027] Among them, the coal mining unit 1 als...

Embodiment 2

[0030] Example 2, see image 3 The coal intercepting part 1a is composed of two chain coal intercepting structures, and the two chain coal intercepting structures are respectively arranged on both sides of the reduction gear box 1b.

[0031] The rest of the structure of this embodiment is the same as that of Embodiment 1, and will not be repeated here.

[0032] In the foregoing embodiments 1 and 2, the two supporting frames 5 can also be suspended by the cantilever beams provided on the flexible hydraulic shielding and supporting system in the working surface.

[0033] In the foregoing embodiments 1 and 2, the flexible traction element 2 adopts a traction chain structure as a whole, the rotary drive unit 3 drives the traction chain segment on the flexible traction element 2 through a driving sprocket, and the reversing unit 4 adopts a sprocket structure.

[0034] In the foregoing embodiments 1 and 2, the coal cutting portion 1a can also be composed of three, four or even more chain co...

Embodiment 3

[0035] Embodiment 3 is a coal mining and transporting method using the steeply inclined coal seam coal mining and transporting device described in embodiment 1 or 2, including the following steps:

[0036] The first step, coal mining: start the rotary drive unit 3 to rotate in the forward direction, and the coal mining unit 1 moves forward to cut the coal until the entire length of the coal seam of the working face is intercepted and then the machine stops;

[0037] The second step, coal transportation: start the rotary drive unit 3 to reverse rotation, the coal mining unit 1 retreats, the scraper on the traction chain 2a uses the groove formed by the coal cutting to transport the coal out of the working face.

[0038] Among them, it is necessary to form an open cut above the steeply inclined coal seam before mining; in the length direction of the coal seam, two inclined roadways 6 and 7 that are consistent with the inclination direction of the coal seam are formed according to the le...

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Abstract

The invention discloses a steep coal-seam coal mining and transportation apparatus and coal mining and transportation method. The steep coal-seam coal mining and transportation apparatus comprises a coal mining unit, a coal transportation unit and a control system, wherein the front end and the rear end of the coal mining unit are serially connected onto an annular flexible traction element, the flexible traction element is driven by a positive-inversion-output rotating drive unit to drive the coal mining unit to go forward or withdraw, and the rear part of the coal mining unit is provided with a coal mining part for intercepting a lower coal and rock mass to form a trough; the flexible traction element of a set length which is arranged behind the coal mining unit is of a traction chain structure, a plurality of rows of coal scraper plates which can go deep into the trough are distributed in the length direction of a traction chain section, and the traction chain and the coal scraper plates form the coal transportation unit. The method is implemented by utilizing the steep coal mining and transportation apparatus. The method comprises the following steps: facilitating the forward rotation of the drive unit, and driving the coal mining unit to go forward to intercept coal; enabling the drive unit to rotate reversely, and driving the coal scraper plates on the traction chain to transport the coal by virtue of the trough formed after the coal is intercepted. The apparatus and the method have the beneficial effects that the coal mining apparatus is simple in structure and low in manufacture cost, and the coal mining method is high in coal mining efficiency and safe in coal mining.

Description

Technical field [0001] The invention relates to the technical field of coal mining in a steeply inclined coal seam, in particular to a coal mining and transportation device and a coal mining and transportation method in a steeply inclined coal seam. Background technique [0002] The flexible shield mining method is one of the most commonly used coal mining methods in steeply inclined coal seams. By setting up flexible shield supports on the coal mining face, the coal mining method adopts manual blasting, and the coal that is mined slides along the bottom wall of the coal. , Transported out through the coal transport equipment in the transport lane. When the mining of a working face is completed, a new working face is opened, and the entire area of ​​coal mining is completed in turn. Since coal mining is done manually, the inclination angle of its protruding and pseudo-inclined working face should not be set too large, otherwise, there is a risk of personnel falling down; at the ...

Claims

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Application Information

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IPC IPC(8): E21C25/68E21C25/20E21C25/52E21D23/00
Inventor 王洁杨祖洪韩治华石明全陈骥王宏张鹏赵迎朱海鹏邱有兴周业谦王德春杨林李诚吴冬
Owner 王洁
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